drubetti / node-avshrink

A small Node.js script to convert audio and video files using FFmpeg.

node-avshrink

A small script to convert and shrink in size big audio and video assets, so that they can be easily used in web apps.

Requirements

• Node.js
• FFmpeg

Setup

On macOS, you can install FFmpeg with Homebrew:

brew install ffmpeg

Install dependencies:

npm i

Create your configuration file (.env):

cp .env.example .env

Configure your .env file. Example:

AUDIO_BITRATE=64k
AUDIO_IN_EXT=mp3,wav
AUDIO_OUT_EXT=aac
IN_PATH=/Users/yourname/in
OUT_PATH=/Users/yourname/out
VIDEO_BITRATE=1536k
VIDEO_IN_EXT=mp4
VIDEO_OUT_EXT=mp4

Place the source files to be converted in the IN_PATH path.
Only the files with the extensions listed in AUDIO_IN_EXT (e.g.: mp3,wav) are considered.
The output bitrates for audio and video can be specified in AUDIO_BITRATE and VIDEO_BITRATE.
For instance, 64k means 64 Kbps (good for speech). 1536k (1.5 Mbps) is OK for 720p videos.

Start conversion

npm start

The converted files will be placed in the OUT_PATH path.
The formats specified in AUDIO_OUT_EXT and VIDEO_OUT_EXT will be used for audio and video.